DOmedia welcomes Carroll Media’s various OOH services on their site
http://blog.domedia.com/2012/03/05/welcoming-5-new-media-vendors-for-your-ad-campaign/
http://blog.domedia.com/2012/03/05/welcoming-5-new-media-vendors-for-your-ad-campaign/
http://www.theatlantic.com/technology/archive/2012/02/the-bus-stop-that-knows-youre-a-lady/253365